Dining at CN

Hello everyone

We are a few short weeks away from our arrival at CN and wanted to ask all you CN experts about dinners. We have stayed at CN in the past but it was a few years ago and wondering if some things have changed and had some questions. Here goes..

#1 Does Lychee require reservations?
#2 Is there an International night or Gala? I seem to recall there being an outdoor set up one night around the pool?